/**
 * 加载百度地图
 */
function loadJScript(){
    var script = document.createElement("script");
    script.type = "text/javascript";
    script.src = "http://api.map.baidu.com/api?v=2.0&ak=UarqQWkrbkTLx9Ku2x5LCrI0zviLfx7n&callback=init";
    document.body.appendChild(script);
}